1 Pc Cooley Rib Spreader Adult Blades 40 110mm With Cosgrove mounting Bars. 1 Pc Tricuspid Retractor Blade. 1 Pc Large Retractor Blade. 3 Pcs Small Retractor Blades. Affordable generic orthopedic implants, used in surgical fixation, correction and regeneration of human skeleton and its soft tissues.